Apparatus for controlling the lighting of gas from a distance.



E. KURNER. APPARATUS FOR. CONTROLLING THE LIGHTING 0F GAS FROM ADISTANCE.

Patented May 7,1912. 3'

APPLICATION FILED JULY 18, 1911.

UNITED STATES PATENT OFFICE.

EDUARD KoRNEn, 0F Liirznn NEAR KOBLENZ, GERMANY.

, APPARATUS FOR CONTROLLING THELIGHTING 0F GAS FROM A DISTANCE.

Specification of Letters Patent.

Patented May '7, 1912.

Application filed July 18, 1911. Serial No. 639,132.

To all whom it may concern Be it known that I, EnUARo KoRNEn, a subjectof the German Emperor, residing at Blumenstrasse 1, Liitzel, nearKoblenz, Germany, have invented certain new and useful Improvements inApparatus for Controlling the'Lighting of Gas from a Distance, of whichthe following is a specification.

This invention relates to apparatus for controlling the lighting of gasfrom a distance.

In similar apparatus as heretofore constructed the transmission of theimpact, through the diaphragm or plunger bell to the control wheel, waseffected by pawl and ratchet mechanism of ordinary construction. Inpractice it was found that these'parts often failed to act owing toimpurities in the gas or rust from the pipes, causing them to becomeclogged and to become dlsplaced readily, resulting in derangement.

In the apparatus according to the present inventionflthe control ratchetis constructed as a rotalting body pivoted on the diaphragm spindle andhas,- with regard to this latter, bet a rotary movement and a pendulousmove out corresponding to the depth of the ratchet tooth. In this wayadvantages in several respects are secured. In the first place theeffect of wear of the engaging surfaces of the cont-rolling pawl ispractically eliminated because this pawl automatically rotates to asmall extent around its spindle at each operationof the mechanism, andcan if desired be readily turned by hand, so that new parts of theengaging surface can be brought into operative contact with the ratchetwheel. Onthe other hand, this design of the controlling organ insures avery easy operation of the controlling mechanism, because the capacityfor rotation of the pawl around its longitudinal axis allows for thechanges of the effective leverage resulting during the gradual ascent ofthe tooth at the time engaged, which might otherwise cause unduefriction and possibly jamming between the pawl and ratchet wheel.

In the accompanying drawing two modifications of the invention areillustrated.

Figure 1 is a vertical'section through apparatus specially intended forupright burners,'the cont-r01 mechanism being shown in elevation. Fig. 2is a section taken on the line AB of Fig. 1. Figs. 3 and 4 show thecasing 1, so that right by a collar f,

the pawl and ratchet device in side and front-view, and Figs. 5 and 6show a valve arrangement for inverted burners, respectively with thevalve closed and opened.

The gas enters through the channel a into thecasing 1 and to the rear ofthe diaphragm b, which is balanced by an adjust-' able blade spring a.The latter may be replaced by an adjustable counterweight. A spindle dis attached to the diaphragm 6, its ends being guided in suitable guidesof defective working ow.- ing to the spindle shiftin laterally cannottake place. On thespin le d is a hollow conical pawl e rotatable aboutits longitudinal axis and in longitudinal section on each side of itsaxis takes the shape of a pawl, i. 6., the cone is provided at its basewith a small annular lip or rim p which serves as a pawItooth. This pawle is prevchted from moving axially on the spindle d, toward the andtoward the left byv a collar g. In addition to the above mentionedrotating movement the pawl c has a pendulous motion similar to that of abell. This latter motion enables the pawl as required to swing sidewiseto the extent of the depth of the corresponding teeth of the ratchetwheel, while the rotary movement serves to minimize the results of wearand bring about a free and frictionless action of the control mechanism.The ratchet wheel h which. works in conjunction with the pawl e isprovided with two different sets of teeth, namely on the front (Fig. 1)sideratchet or crown tee with which the pawl e'engages with its annularlip 72, and other teeth on the periphery of the ratchet wheel whichserve to prevent backward rotation of'the wheel 71., by means of therising and falling ball Z (Figs. 3 and 4), which is somewhat smaller inradius than the depth of each of the teeth with which it engages. Theball valve 2' is located in a bore of the .casing m on the valve seatis, it is actuated by the cam wheel 8 by means of gently rising camsthereon.

The apparatus works in the following way. If a pressure impact oraugmentation takes place, the diaphragm 6 moves to the left, a: in Figs.1 and 2. The collar f of the spindle (Z then carries with it the pawl 6,so that, owing to the engagement of the lip 79 with the crown teeth(Fig. 1) of the ratchet wheel, the latter is turned to the extent of onetooth in the direction of the arrow of Fig. 1. The falling ball I thenen gages with the oblique surface of the particular ratchet tooth thenpassing beneath it, and on completion of the stroke of the pawl, dropsbehind that tooth into the next succeeding tooth gap. At the same timeone of the cams of the wheel a lifts the ball valvez' ofi its seat 7c.This lifting however .takes place very gently because, deviating fromknow-n designs, it is, assisted by the gas pressure. During the strokeof the pawl the .latter is free to adjust itself automath cally andcorrectly owing to its rotating and swinging movement," so'that agentle, free' and frictionless motion of the controlmech- 1 I fanismtakes place. When the pressure impact or augmentation stops, thediaphragm.

b with the spindle: ol returns rightward to normal position. The pawl eis then ear ried along by the collar g. Owing to its,

'pendulous suspensiom'the pawl, with its lips p rises duringthe returnmot-ion out of ,the corresponding crown tooth, the ratchet.

I made as a separate body, and is located'in- -side avalve seat body m.The ball'i is concontrolled by gently rising teeth 8, whichproject-sidewise on the ratchet wheel h. On the "valve seat body m; aprojecting rib t is rovided. When the ratchet wheel h turns 'bout itsaxis, each tooth s tilts the ball z' over the'tipping edge t after themanner ofa one-a iii-lever, which can be donewith a li ht e 'enditure ofene'r and it is'then g P gy suspended-in the way seen in Figfl6, awayfrom the valve seat 70.

What I claim and desire to secure by Letters Patent of the United Statesis '1. A device for controlling the lighting of gas from a distancecomprising the combination of a member sensitive to pressurewith; a pawladapted to be moved longitudinally by the said'member, means forsupiporting the pawl, the pawl being rotatable on the said means and alsopartaking'of a.

, pendulous. motion, the extent ofjwhieh "is determined by the depthof'ratchetftceth,

withwhich it is adapted to engage. A 2. A device for controlling thelighting of gas from a distance comprising the com bination ofa membersensitive to pressure with a pawl movable longitudinally by the saidmember, means for supporting the -pawl,- the pawl being rotatable, onthe said means whereby it may be turned about its longitudinal axis, thepawl also being capable'of'a 'pendulous motion, the extent of whichdepends upon the depth of the ratchet teeth with which it is adapted toengage,

the said supporting means comprisin a collar which forms a ball, pivotabout w ich the said pawl moves.

gas from .a' distance comprising the combination of a member sensitiveto pressure with a pawl movable longitudinally by the said member, meansfor supporting the said all - a 7 0 3. A device for controlling thelightingof pawl, the pawl being. rotatable onthe'said.

means, a ratchet wheel actuated by the movement of said pawl, a ballhaving free play and serving as a detent jfor the'ratchet wheel theradius of said ball being less than with which it engages.

4. A gdevicefor controlling the lighting of gas from a distancecomprising the combination of a mcmbersensitive to pressure,

the depth of the teeth of the ratchet wheel a pawl and ratchet wheeldevice acted upon by said first mentioned member, and a detent for theratchet wheel consistin "of a ball having free vertical play, the ra iusof said ball being les than the de th to which the ball enters in theteeth o the ratchet wheel.

5'. A device of; the class described comprising a chamber-havinga'diaphragm therein, an opening whereby. gas may enter the chamber, acam wheel rotatably mount ed within the chamber, a ball valve-suitablypositioned within a casing and free to turn in all directions, the ballvalve being in en gagement with the said cam wheel, and

engagement with other means connected to the cam wheelwhereby, as suchdiaphragm, ,is moved, the cam wheel willybe operated and. the ballvalve-thereby turned by the;

cam wheel and lifted vertically so that it is held suspended over itsseat.

In testimonwhereof I afii my signature in presence 0 two witnesses. I

. Ep' AnD KoRNEn.

Witnesses:

PAUL, AREAS, CLKRE S mon.

means eonnectedto the diaphragin and-m:

